package com.qk.mapper;

import com.qk.entity.Course;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.List;

@Mapper
public interface CourseMapper {

    //查询课程
    List<Course> list(String name, Integer subject, Integer target);

    //删除课程
    @Delete("delete from course where id=#{id}")
    void deleteById(Integer id);

    //添加课程
    @Insert("insert into course(name,subject,price,target,description,create_time,update_time) values(#{name},#{subject},#{price},#{target},#{description},#{createTime},#{updateTime})")
    void insert(Course course);

    //根据ID查询课程
    @Select("select id, name, subject, price, target, description, create_time, update_time from course where id= #{id}")
    Course selectById(Integer id);

    //修改课程
    void update(Course course);
    //根据学科查询课程
    List<Course> listBySubject(Integer subject);

    //查询所有课程列表
    @Select("select id, name, subject, price, target, description, create_time, update_time from course")
    List<Course> listAll();
}

